feat(icons): added air-pressure icon (#2554)

* Add `air-pressure` icon

And slightly modified the `wind` icon to match

* Rename `air-pressure` to `wind-arrow-down`

And update the JSON file with contributors to the original `wind` icon and add `pressure` as a tag

icons/wind-arrow-down.json

@@ -0,0 +1,19 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "colebemis",
+    "csandman",
+    "ericfennis",
+    "jamiemlaw"
+  ],
+  "tags": [
+    "weather",
+    "air",
+    "pressure",
+    "blow"
+  ],
+  "categories": [
+    "weather",
+    "sustainability"
+  ]
+}

icons/wind-arrow-down.svg

@@ -0,0 +1,16 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M10 2v8" />
+  <path d="M12.8 21.6A2 2 0 1 0 14 18H2" />
+  <path d="M17.5 10a2.5 2.5 0 1 1 2 4H2" />
+  <path d="m6 6 4 4 4-4" />
+</svg>

icons/wind.svg

@@ -9,7 +9,7 @@
   stroke-linecap="round"
   stroke-linejoin="round"
 >
-  <path d="M17.7 7.7a2.5 2.5 0 1 1 1.8 4.3H2" />
+  <path d="M12.8 19.6A2 2 0 1 0 14 16H2" />
-  <path d="M9.6 4.6A2 2 0 1 1 11 8H2" />
+  <path d="M17.5 8a2.5 2.5 0 1 1 2 4H2" />
-  <path d="M12.6 19.4A2 2 0 1 0 14 16H2" />
+  <path d="M9.8 4.4A2 2 0 1 1 11 8H2" />
 </svg>